NEETS Module 01 Assignment 2: Batteries

This is the Textbook Assignment: Chapter 2, “Batteries” from the Module 1 — Introduction to Matter, Energy, and Direct Current in Navy Electricity and Electronics Training Series (NEETS) . If you are looking for a reviewer in Electronics Engineering this will definitely help. I can assure you that this will be a great help in reviewing the book in preparation for your Board Exam. Make sure to familiarize each and every questions to increase the chance of passing the ECE Board Exam.

Start Practice Exam Test Questions

Choose the letter of the best answer in each questions.

1. Which of the following is the purpose of an electrical cell?

A. To change mechanical energy to electrical energy

B. To change chemical energy to electrical energy

C. To change electrical energy to mechanical energy

D. To change electrical energy to chemical energy

2. What are the three basic parts of a cell?

A. Electrodes, electrolyte, container

B. Electrodes, acid, water

C. Anode, cathode, ions

D. Anode, load, depolarizer

IN ANSWERING QUESTIONS 3 THROUGH 6, SELECT THE PHRASE FROM THE FOLLOWING LIST THAT DESCRIBES THE PART OF A CELL IN THE QUESTION.

I. PARTS OF A CELL

3. Electrolyte

4. Container

5. Anode

6. Cathode

II. DESCRIPTIVE PHRASE

A. negative electrode

B. positive electrode

C. solution acting upon the electrode

D. mounting for the electrode

7. What term is given to the process that takes place inside a cell?

A. Electromagnetic action

B. Piezoelectric action

C. Electromechanical action

D. Electrochemical action

8. With respect to recharging a primary or secondary cell, of the following statements, which one is correct?

A. The secondary cell can be recharged by passing current through it in the proper direction

B. The primary cell can be recharged by passing current through it in the proper direction

C. The secondary cell can only be recharged by changing the electrodes

D. The primary cell can only be recharged by changing the electrolyte

9. What determines the amount of current that a cell can deliver to the external circuit?

A. The internal resistance of the cell only

B. The resistance of the external load only

C. The circuit resistance and the internal resistance of the cell

D. The circuit capacitance and number of free electrons in the load

10. Which of the following actions will lower the internal resistance of a cell?

A. Decreasing the size of the electrodes

B. Increasing the size of the electrodes

C. Increasing the spacing between the electrodes

D. Increasing the resistance of the electrolyte

11. What causes negative ions to be attracted to the cathode of a primary cell while the cell is discharging?

A. A negative charge caused by a loss of electrons

B. A negative charge caused by an excess of electrons

C. A positive charge caused by a loss of electrons

D. A positive charge caused by an excess of electrons

12. What causes hydrogen to be attracted to the anode of a primary cell when the cell is discharging?

A. A negative charge caused by a loss of electrons

B. A negative charge caused by an excess of electrons

C. A positive charge caused by a loss of electrons

D. A positive charge caused by an excess of electrons

13. What causes the cathode to be "eaten away" in the primary cell while the cell is discharging?

A. The material of the cathode combines with the negative ions to form a new substance.

B. The material of the cathode dissolves in the electrolyte.

C. The material of the cathode leaves the negative terminal of the cell and goes through the load to the anode.

D. Bacteria in the electrolyte erodes the material in the cathode.

14. The primary cell is completely discharged when which of the following conditions exists?

A. The cathode is completely eaten away

B. The active ingredient in the electrolyte is used up

C. The voltage of the cell is reduced to zero

D. Each of the above

15. In a zinc-carbon primary cell, what is the function of the carbon electrode?

A. To generate electrons

B. To supply a return path for current

C. To speed electrolysis

D. To collect hydrogen

16. The lead-acid cell is an example of which of the following types of cells?

A. The dry cell

B. The voltaic cell

C. The primary cell

D. The secondary cell

17. In a fully charged lead-acid cell, what is the composition of the anode, cathode, and electrolyte respectively?

A. Zinc, carbon, and water

B. Carbon, lead, sulfuric acid and water

C. Lead peroxide, sponge lead, sulfuric acid, and water

D. Nickel, cadmium, potassium hydroxide, and water

18. Which of the following actions will recharge a secondary cell?

A. Adding more water to the electrolyte

B. Adding more active ingredient to the electrolyte

C. Connecting the negative terminal of a voltage source to the cathode of the cell and the positive terminal of the voltage source to the anode of the cell

D. Connecting the negative terminal of a voltage source to the anode of the cell and the positive terminal of the voltage source to the cathode of the cell

Figure 2A.—Lead acid chemical actions.

IN ANSWERING QUESTIONS 19 AND 20, REFER TO FIGURE 2A. SELECT THE CORRECT CHEMICAL ACTIONS WITHIN A LEAD-ACID CELL FOR THE CONDITION STATED IN EACH QUESTION.

19. The cell is discharging.

A. A, C, E, H

B. A, D, E, G

C. B, C, F, G

D. B, D, F, H

20. The cell is charging.

A. A, C, F, H

B. B, C, F, H

C. A, D, F, G

D. B, D, F, G

21. When all the lead sulfate in a lead-acid cell is converted to sulfuric acid, lead peroxide, and sponge lead, what is the condition of the cell?